remcos | dcb2c88a0e980e5d5b2227eb3ede87e3aed37ac3a1126bbc547671763a1c102e

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
18/07/2023, 12:40

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General

Target

51173f4615fda6188760cb468b593a27.exe
Size

831KB
MD5

51173f4615fda6188760cb468b593a27
SHA1

24795a56a6d1dcd780922eb0b8879f65019849cd
SHA256

dcb2c88a0e980e5d5b2227eb3ede87e3aed37ac3a1126bbc547671763a1c102e
SHA512

db94eea44597fa7bc8577588a74eb8239dc9b914cc379a119ffeac6fa499e356d2c1601ffb4a594227c5a3ff24a4c6e68df8ea1a1e8718adff514937b301adba
SSDEEP

24576:uVI6+51cyQkbzsqkC3ecuPRE3oravDlwYCl:uVIFj7IqkCuZRjSlwYCl

Score

10^/10

remcos favor rat

Malware Config

Extracted

Family

remcos

Botnet

Favor

favor-grace-fax.home-webserver.de:37782

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
UYGV78YHj987Ys.exe
copy_folder
iu7ytrtyu
delete_file
false
hide_file
false
hide_keylog_file
true
install_flag
false
keylog_crypt
true
keylog_file
0987yUIO0987yUIOiuyg.dat
keylog_flag
false
keylog_folder
98UyghjI9Uyhg9IUY
mouse_option
false
mutex
-87yhJKO987ygh-DSBOY7
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
take_screenshot_option
false
take_screenshot_time
5

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Utilsap.exe.exe	Powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Utilsap.exe.exe	Powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3576 set thread context of 3316	3576	51173f4615fda6188760cb468b593a27.exe	87

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4496	Powershell.exe
4496	Powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4496	Powershell.exe
Token: SeDebugPrivilege	3576	51173f4615fda6188760cb468b593a27.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3316	InstallUtil.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3576 wrote to memory of 4496	3576	51173f4615fda6188760cb468b593a27.exe	85
PID 3576 wrote to memory of 4496	3576	51173f4615fda6188760cb468b593a27.exe	85
PID 3576 wrote to memory of 4496	3576	51173f4615fda6188760cb468b593a27.exe	85
PID 3576 wrote to memory of 3316	3576	51173f4615fda6188760cb468b593a27.exe	87
PID 3576 wrote to memory of 3316	3576	51173f4615fda6188760cb468b593a27.exe	87
PID 3576 wrote to memory of 3316	3576	51173f4615fda6188760cb468b593a27.exe	87
PID 3576 wrote to memory of 3316	3576	51173f4615fda6188760cb468b593a27.exe	87
PID 3576 wrote to memory of 3316	3576	51173f4615fda6188760cb468b593a27.exe	87
PID 3576 wrote to memory of 3316	3576	51173f4615fda6188760cb468b593a27.exe	87
PID 3576 wrote to memory of 3316	3576	51173f4615fda6188760cb468b593a27.exe	87
PID 3576 wrote to memory of 3316	3576	51173f4615fda6188760cb468b593a27.exe	87
PID 3576 wrote to memory of 3316	3576	51173f4615fda6188760cb468b593a27.exe	87
PID 3576 wrote to memory of 3316	3576	51173f4615fda6188760cb468b593a27.exe	87
PID 3576 wrote to memory of 3316	3576	51173f4615fda6188760cb468b593a27.exe	87
PID 3576 wrote to memory of 3316	3576	51173f4615fda6188760cb468b593a27.exe	87

C:\Users\Admin\AppData\Local\Temp\51173f4615fda6188760cb468b593a27.exe
"C:\Users\Admin\AppData\Local\Temp\51173f4615fda6188760cb468b593a27.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3576
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
  "Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\51173f4615fda6188760cb468b593a27.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Utilsap.exe.exe'
  2⤵
  - Drops startup file
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4496
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:3316

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\ProgramData\98UyghjI9Uyhg9IUY\0987yUIO0987yUIOiuyg.dat

Filesize
184B

MD5
2fff9f7d95c76ef8a2bc44c9bec69a5c

SHA1
8cf3da0d8e64a0354bdccbed2d30c5dd048d301c

SHA256
efb1fcd0e22cd27afabf1f4a52bcc5468b607fdb809662a6370a5812e00aeb03

SHA512
02854aef02c4a57af7374d490d50f1fb613d901d7724124121e1e70909447620f9f97a0a6e49561e1161448acbdb80f89adb0684e2fe7f04a54cacda69eea133

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tajpze5m.0tx.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3316-220-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/3316-238-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/3316-234-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/3316-223-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/3316-208-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/3316-219-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/3316-218-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/3316-217-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/3316-216-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/3316-213-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/3316-239-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/3316-211-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/3316-209-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/3576-157-0x0000000005320000-0x0000000005343000-memory.dmp

Filesize
140KB

Download
memory/3576-201-0x0000000005320000-0x0000000005343000-memory.dmp

Filesize
140KB

Download
memory/3576-159-0x0000000005320000-0x0000000005343000-memory.dmp

Filesize
140KB

Download
memory/3576-161-0x0000000005320000-0x0000000005343000-memory.dmp

Filesize
140KB

Download
memory/3576-163-0x0000000005320000-0x0000000005343000-memory.dmp

Filesize
140KB

Download
memory/3576-165-0x0000000005320000-0x0000000005343000-memory.dmp

Filesize
140KB

Download
memory/3576-167-0x0000000005320000-0x0000000005343000-memory.dmp

Filesize
140KB

Download
memory/3576-171-0x0000000005320000-0x0000000005343000-memory.dmp

Filesize
140KB

Download
memory/3576-169-0x0000000005320000-0x0000000005343000-memory.dmp

Filesize
140KB

Download
memory/3576-173-0x0000000005320000-0x0000000005343000-memory.dmp

Filesize
140KB

Download
memory/3576-175-0x0000000005320000-0x0000000005343000-memory.dmp

Filesize
140KB

Download
memory/3576-177-0x0000000005320000-0x0000000005343000-memory.dmp

Filesize
140KB

Download
memory/3576-179-0x0000000005320000-0x0000000005343000-memory.dmp

Filesize
140KB

Download
memory/3576-181-0x0000000005320000-0x0000000005343000-memory.dmp

Filesize
140KB

Download
memory/3576-183-0x0000000005320000-0x0000000005343000-memory.dmp

Filesize
140KB

Download
memory/3576-185-0x0000000005320000-0x0000000005343000-memory.dmp

Filesize
140KB

Download
memory/3576-187-0x0000000005320000-0x0000000005343000-memory.dmp

Filesize
140KB

Download
memory/3576-189-0x0000000005320000-0x0000000005343000-memory.dmp

Filesize
140KB

Download
memory/3576-191-0x0000000005320000-0x0000000005343000-memory.dmp

Filesize
140KB

Download
memory/3576-193-0x0000000005320000-0x0000000005343000-memory.dmp

Filesize
140KB

Download
memory/3576-195-0x0000000005320000-0x0000000005343000-memory.dmp

Filesize
140KB

Download
memory/3576-197-0x0000000005320000-0x0000000005343000-memory.dmp

Filesize
140KB

Download
memory/3576-199-0x0000000005320000-0x0000000005343000-memory.dmp

Filesize
140KB

Download
memory/3576-133-0x0000000000670000-0x0000000000746000-memory.dmp

Filesize
856KB

Download
memory/3576-203-0x0000000005320000-0x0000000005343000-memory.dmp

Filesize
140KB

Download
memory/3576-205-0x0000000005320000-0x0000000005343000-memory.dmp

Filesize
140KB

Download
memory/3576-206-0x0000000005370000-0x0000000005371000-memory.dmp

Filesize
4KB

Download
memory/3576-134-0x0000000075290000-0x0000000075A40000-memory.dmp

Filesize
7.7MB

Download
memory/3576-156-0x0000000005320000-0x0000000005343000-memory.dmp

Filesize
140KB

Download
memory/3576-135-0x0000000005630000-0x0000000005BD4000-memory.dmp

Filesize
5.6MB

Download
memory/3576-136-0x0000000005160000-0x00000000051F2000-memory.dmp

Filesize
584KB

Download
memory/3576-137-0x0000000005300000-0x0000000005312000-memory.dmp

Filesize
72KB

Download
memory/3576-215-0x0000000075290000-0x0000000075A40000-memory.dmp

Filesize
7.7MB

Download
memory/3576-138-0x00000000053A0000-0x00000000053B0000-memory.dmp

Filesize
64KB

Download
memory/3576-139-0x0000000005450000-0x00000000054EC000-memory.dmp

Filesize
624KB

Download
memory/4496-140-0x0000000002770000-0x00000000027A6000-memory.dmp

Filesize
216KB

Download
memory/4496-141-0x0000000075290000-0x0000000075A40000-memory.dmp

Filesize
7.7MB

Download
memory/4496-142-0x0000000002810000-0x0000000002820000-memory.dmp

Filesize
64KB

Download
memory/4496-143-0x00000000052A0000-0x00000000058C8000-memory.dmp

Filesize
6.2MB

Download
memory/4496-224-0x00000000065F0000-0x0000000006686000-memory.dmp

Filesize
600KB

Download
memory/4496-225-0x0000000006580000-0x000000000659A000-memory.dmp

Filesize
104KB

Download
memory/4496-226-0x0000000006690000-0x00000000066B2000-memory.dmp

Filesize
136KB

Download
memory/4496-230-0x0000000075290000-0x0000000075A40000-memory.dmp

Filesize
7.7MB

Download
memory/4496-144-0x00000000051C0000-0x00000000051E2000-memory.dmp

Filesize
136KB

Download
memory/4496-151-0x0000000005AC0000-0x0000000005B26000-memory.dmp

Filesize
408KB

Download
memory/4496-155-0x0000000005BA0000-0x0000000005C06000-memory.dmp

Filesize
408KB

Download
memory/4496-207-0x0000000006010000-0x000000000602E000-memory.dmp

Filesize
120KB

Download